Choice field value getting cleared out on workspace after saving the form

Hello all,

I am facing an issue on custom workspaces if I try to update incidents on them.

So, as per our existing logic, whenever someone changes CI field on incident, it will set values for Category, Service, Service offering and subcategory will becomes mandatory to select values from dropdown.

(Subcategory is dependent on Service offering names).

If i select any subcategory and save the form it works fine in native view.

But if I change CI on workspace for an incident, select subcategory and save the form, form will get saved (updating in server as well) but subcategory again becomes mandatory with no values to select.

I've checked all UI policies and client scripts around subcategory, but none of them is causing this issue.

if it would have caused, then in native view as well same issue could have been seen.

Can you please help me in debugging this issue?